Ring-joint machine



RING JOINT MACHINE July' 15, 1930. w. L. EVANS 1,770,882

Filed May l0, 1929 2 Sheets-Sheet l mi" "mllmll SWW/wrox WILLUJM L EWNS July l5, 1930. w. l., EVANS 1.770,882

RING JOINT MACHINE Filed May 1o, 1929 2 sheets-sheen 2 n Il I1 Z/ ll y;

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WILLI/IM LEvNs /Z f m09@ parentela mais, lese [Wrririraiun nun/Naples- Wnsiiive'ifoninnenn Y' lBrite-'Jonur- Mnonimi V j "application inea` nay 10,1929. zserir no;V esente,

y rlhis invention relates to ringfjoint nia- 21 secured to'a swinging'bracket22,'Whichisl chine-sof the general-typeshorn in my coarran'gedfto swing Withthe turret head, has'V y pendingYapplicationySen No. 360,769 .filed van elongated, smooth or cylindrical Vpulley VAMay 6,1929, and, among other objects, 'aims `over Which ai spindle-f driving belt .23j is 5 to provide improved driving and manu-pal:- vtrained.'fflfhe'ideais to permit the belt to ride 5 control lmechanism for the'groove'cutterfand: fupondownlonfthe Velongatedpulley as the j ring assembling ram. Another aim is to prospindle and-its icro'wn pulleyl are .raised or `vide an improved turret mounting orsupport {loweredtoifeed-the cutter-'intothe'v'rorle for the cutter andraln' whereby they may ,bg- V- Top'rovidefor tightening the-belt, the inot 10` ,quickly moved'over the Work, sothat a joint vtor supjiiortlng bracket v22 isindepende'ntly 6e; Vmay be 'completed inra few seconds. .'Gther a'djustable'onthe column l0 and is',adaptedtov objects and` advantages will appear in the be securedain adjusted position withrespect- Y 'specification,"whenconsidered infconnection `rto the turret #bracket 16 by means cfa bolt with the accompanying drawings, wherein- 2lfpassing`g` through arcuate vslots 25 in verti` V v15. Fig. l is .a side elevation of` a machineemg. callyfgalined' "ears V26 projectingV` vfrom the e;

' 2@ Y Fig.V 4 is a fragmentary vertical sect bodying thefinvention; Y j Y .Y j brackets-16 and 22 (seeFig. 5).- y Fig. 2is a front elevationofthe machine; As, ini-my Vaforesaid application, there isI ,Figzf is a fragmentary elevation taken; shown ashavinghood-27flcooperating WithV from the right hand side ofFigr2; y Lfthe vgrooye -c'utterrj19 and .slidablymounted` Y nal y-on thecutterspindle" 18. Herein, a cross 7e 'View showing the groove cutter; j head 28 isrotatably mounted .onzthe v spindle Fig.- 5 is a top planl View; 1,8 abovefthejshaying hood between alower.

,A .6 is a fragmentary sectional yieu't fi-Xedcollarv29 and an upperaXedcollarBO,

showinV a ring about to' be. assembled; and a; suitable ball or 'rollerbearingg member Fig. is a1 plan 4viewlof a Vtypical kcorner l'beinginterposed between 'the Vupper X'edYf-S joint madefby the machine. i j A j collar BO-and the upper end of thecrosshead. Y `Referring particularly tof thedrawings, A plurality o-f shaving'cup'supportingrods the machine there shown issupported on a 32'having nutsfon 'their` upper endsfayg vertical column l0 mounted on a suitable base suspended from'the crosshead, and! adjust-v Se 11. A work tabie 12 is zuiljustablysupported` ably secured to the cover plate'lof the shave 8a on the column and the mechanism for cutting ing hood :in screw threaded bosses 55.v Coil the ring` grooves and assembling the ringsl springs'BG are( interposed between thelower is supported on the column above the tableface of *theV4 crossheadland adjustable stop In the present example, both the cutter and shoulders-37V on vthe screvT threaded lower ram are carried. by a turret head 13 made of a ends of the rods. The arrangement is 'such 85 1 single casting and having a vertical spindle ithatjthe` crosshead islowered withthefspinor shaft housing` .14. and gear'v casingjl both dle,`and causes the lower edge of the vshavingv supported byan integral bracket y1b mount hood lto strike the upper face of the Wcrh` ed to swing on thel column l() between fixed: `beforethecutter begins-to operate. the` collars 17. i Y f j f spindle is further` lowered, the `c'rosshea'dngfA As best shown in Fig'. a, a? cutterf's'pindle exertspressure onithe'springs 36, While the or shaft 18 is j ournaled for both sliding and Vhood remains iti/engagement Withthe Work, rotating movement in the housinglfl and a .the gripping-pressureuponthe Werk increas- .groove cutter 19, preferably like thatshown ingaslthe Cutteris fed into it. As the cutter j Y -f' in my aforesaid application, is*` Vadjustably*produces shavings, theyare removed' from 9'5- mounted on its lower-end.. The arrangement" .thehood by means of a smallfan 38 above such that the cutter may be lowered andl the cutter andfifed on shaft or spindle, fed into the Work Which is held on the table.v Y a suitablevdischarge spout 39 being provided To dri-ve the cutterspindle,` a crown pulley at` one side ofthe hood. Y v

5 20 is mounted on its upper endand a motor Ii1:Figs.1,3 and 4, the turret is shown 155 i `apron 40.A I An integral ear or ,.ug 41 on this p shaft or spindle is shown as being connectedY gearing to drive thering assem-` ting ram 46 in much the same manner as dis- Bil as having avvertical, downwardly extending apronis utilized as an additionallower bearing to steady lthe cutter spindle. On tl ev rear face lof the apron is pivoted an operatingA lever 42 connected by meansof a suitable pin orboltfl-B passing through a vertical slot 44 tothe crosshead 28. This connection between the lever and the crosshead prevents rotation of the crossheadwith the cutter spindle(Y As will beseen in Figs. Sand 4,. the lever handle is easily accessible at the right'hand side of the turret Vso that it can be manipulated by 'the right hand of the operator. It isnorinally heid in itsuppermost position, thereby holding the cutL means of a small tension spring 45. (Fig. 1.)y

Now referring to Figs. 2, 3 and4, the cutter crank pin. A ram rod or bar52 is slidably` mounted in bearings'provided in a-pair of spaced brackets or lugs 53 on theapron, and

its upper 'end is connectedto the arm 51 of the lever 'by aplink 54 whichis preferably" bifurcated at its ends. vThis-link 54`constitutes the other part of the toggle.v

As will be 4seen in Fig. 4, the rain'cup 46 is adjustably secured to the lower end ofv the ram bar andi is normally heldin its up` perinost or inoperative position by means of ,a spring 55 between the lower bearing meinber 53 and a shoulder or stop member 56` on the bar. The arrangement is suchthat, when the lever 50 is lowered as shown in Fig. 2, the two arms or links of the toggle are almost.y but not quite straightened, being prevented from swinging past the position. shown by means of a suitable toe portion on "the arm 51 cooperating with the bottom ofthebifurcation in the upper end of the link 54 (Fig. 3). "The lever is thus utilized initially to lower the ram to engagea ring 57, onthe frusto-conical guidingfblock '58, as shown in Fig. 6. This is done preferably when the crank is in its uppermostposition, so that when the crank rotates toits lowerposition, pressure will be exerted by itonthe rain' through the toggle, forcing the ring 57 over the guiding block 58' into the ring groove around the vboss provided bythe groove cutter. When the lever 50 is released, the spring 55 will raise the ram again to its inoperative position. Should the ram force the ring to the bottom of the ring groove before the crank reaches the lower end of its stroke, thetoggle nr lin Vinoperative position through .the toggle links.

arms will kick toward the right, as viewed inV Vor breakage of the machine.

s lis -set forth in my aforesaid copending application, the turret is adapted to be swung to either working position, with the cutter or the ram properly centered over the work, it being'understood that the work is placed onl the table against a suitable gauge Aplate or guide (not shown). Herein, a stop inember in the form of a collar 59 having radial arms 50 is secured to the column 10, and a spring urged plunger 61 projects through the-turret apron l40 to limit the swinging movement ofthe turret by striking the-arms.

To limit the depth'of-k the grooves made by the cutter, there is shown an adjustable stop member 62 in the form of a screw threaded' i; to the cover plate 34- of the shaving hood and held in. adjusted position by means ofA suitable lock nut 63 (Fig. ,An integral or extension64 on the crosshead is adapted to stripe the upper end of the stop meni- Y ber when the crosshead and the cutter shaft are inovedto feed the cutter into the work,

Thenthe handlev is released so that the cutter i is raised to its uppermostpositionby inea sl of the spring45 assistedby thecliinbing ac` tion of the worm 47 on the'worin gear 48, theV threads on the worin being left handed to facilitate this climbingmovement. Thetun ret is then swung. to the position shown in Fig. 4 with thev rain Aproperly centered over the work, the frusto-conical guide block with.

the ring on it is placed upon the boss provided by the cutter, and the ram is'iow-ered to a position to'be operated by the crank by means f the hand lever 50, which almost, 'but not quite, straightens the toggle links as shown in Fig. 2. The lever is lowered-while the crank 49 is near the'upper end of-its stroke and held down until the crank passes the lower partof its stroke, thepover being applied if the ram' cup forces the ringV to Vstrike the bottom of the groove before the crank has reached the lowoi` Vlever 50 is released and the jointed parts are removed fromk the work table, so thatptlie cycle of operations can be repeat-ed', It will thus be seen. that the groove cutting and ring assembling operations can be completed very' tnerstop lug 64 strikes th Astop meml er 62.Y

quickly. An unskilledlaborer,can very easily learn to operate the `machine and can `malte aicomplete joint within approinmab seconds. 'i

From the foregoing description, it will be 'The operation oi the macliiiieis so simple thatV an unskilled laboreror boy can manipulate it. The cutteris never exposed, and cannot injure the operator, or ca'tchh'is clotlii z Furthermore, there are no rotating parts'that Y expose the operator to any danger of serious rio injury. f s f Gbviously, the presentinvention not stricted tothe particular einbodiinen lherein, shown and described. Moreover, it is not epensable 'thatall the teaturesof the invention be used congointiy, since they may bc employed advantageously in various cour binations and sub-combinations. i

" lVhat is claimed is zj l. A ring joint machine, comprising',

combination, a ivorli table; a turret above the Work table; a groove cutter having a slidably and rotatably mounted. in the turret a ring assembling ram slidably mounted with respect to the turret; power connections be tween the cuttershait and the ram; a motor connected to drive'the cuttersha'lt; 4ainl liad Y levers for lowering the cutter and ram to engage the Work on thetable. i

2. A ring joint machine, comprising., in

combination, a support having aVK vertical col-- umn; ivoil; table on the column; a turret on the column above the ivorl table; a groove cutter `having a spindle slidably and rotatfl v mounted in the turret; a ring assembling ram slidably mounted on the turret; and a motor independently supported on the 4col-v umn and having a. belt driving connec saidcutter shaft, said motor being udine-able around the column to 'tighten the belt.

3. A ring Vjoint machine, comprising, in'y combination, asupport having a vertical umn; awork table on the column; ,A on the column above the Work table; a groove cutter having a spindle slidably and rotatably p mounted in the turret; a ring a..,senibling ram slidably mounted on the tui-ret; reduction gearing operat'ivelyl connecting the cutter shaft tothe rain and' a motor having a belt driving connection to said cutter shaft.

4. A ring joint machine, comprising in combination, a base; a vertical column on the base; a Work table supported on the column; a turret on the column above the Worlf; table; a groove cutter having a spindle slidably and rotatably mounted in said turret.; means to raise and lower thecutter and its shaft; a

. l i ueseiiioled Ving vvithjthe shaic pulley on the shaft; a motor also supported ,to swing with said turret and having a drivpulley; a driving belt betiv'eensaid pulleys;a ring assembling ram. Von the turret adapted to be swung over the groove made by, said" groovecutter; andireduction gearing connecting said ram to be operated by said motor;` 4 Y 5. A ring Joint wor-l; `table supportedon the columiu'fa-turret onthe column `above the Worktablea machine, comprising, i in A combination, al base g a column on the base; a

`roolve cutter and rino" assemblin ram car 1 ried" by the turret` and arranged to operate successively on the Work; a bracket:y sup` ported-onthecolumn to inove With the tura? motor secured to the bracket; a belt.

driving" connection between-the motor and thecutter shaft and ram.;

6. A ring joint machine," comprising, in

combination; abase; a column voiithe base a Work table supported on theV column a turretl on tliecoluinn above the worl table; av groove cutterand ring assembling ram carried by theturret andarranged to operate successive-v ly on the Work; a bracket supported onv the ooiumnto move with the turret; a' motor secured kto the bracket; avertically elongated pulley on themotor shaft; a cutter shaft 'eX- tending through vthe turretnand having a crown pulleyalined `with the motor pulleyr;a

belt trained over said pulleys arranged to permit the' cutter shaft and its pulley to be raised and lowered and power connections Abetween the'cutter shaftand the ram. "i". In a ring jointmachine of the described, a Work table; a vertical column character above the Worlrtable; a turret on thecolumn;

a groovecutter havinga shaft slidably and rotatably mounted in the turret; a motor on the opposite side ofl the column from the groove cutter 4and connected to drive 'the cutv ter shaft; and a hand lever connected to the sliaiit to yi'eed the cutter into the Work.

Y 8. v`in a ring joint machine of the character iloV described, a Work table; acoluinn extending above the Work table; a turreton thev col-V umn; a' groove cutter Vhaving a-jsliaft' slidably and rotatably mounted in the turret; a crosshead rotatably .mounted'on thefsliait ;a shav-` ing hood-'around the cut-ter; suspending'rods' i tor the feheffing hood' slidably mounted in said crosshead; compression springs-on saidrods arranged to exert pressure on said hood when the' Ycutter is `loivered and cause the hood to grip *the Work; and a 1 pivoted, spring4 urged lever on the turretconnectedto the crosshead to raise and lower-the cutter, said 'connection preventing the cros'shead vfrom rotatlfb v 9,. In a ring joint machine of the character described, a Work table al columnV extending above the Woiktable; a turret onk the column: a groove cutter having Va shaftv slidably and Y' jacent to to `the apron and connected to the crosshead rotatably mounted. in `the turret; a crosshead rotatably mounted on the shaft; a shaving hoodaround the cutter; suspending rods for the shaving hood slidably mounted in said crosshead; compression springs on said rods arranged to exert pressure on said hood when the cutteris lowered and cause the hood to' grip the work; an apron on the turret adsaid shaft; a hand lever pivoted to raise and lower the cutter shaft; a spring connected to the lever normally to holdthe cutter in inoperative position; and adjust-` able stop means to limitthe feeding movement of the cutten j Y l0. In a ring joint machine of the character described, a work table; a column extending abo *e the work table; a turret on the column; a groove cutter having ashaft slidably and rotatably mounted in the turret; a crosshead rotatably mounted on the shaft; a shaving'hood around the cutter; suspending rods for the shaving hood slidably mounted in `said crosshead; compression springs on said -rods arranged to exertpressure on'said hood Y when the cutter is lowered and cause the hood I acter described, a work table; a supporting column extending above the work table ;a ver-Y tical shaft housing supported on the column above the table; a groove cutter having a shaft both slidably and rotatably mounted in the housing; driving means for the shaft;

a non-rotatable shaving hood surrounding the cutter and arranged to be lowered to engage and grip the work as the cutter is fed toward the work; and a lever connected to raise and lower the cutter and hood.

l2. A ringjoint machine, comprising, in combination, a work table; a supporting column eXtending above the table a head mountp ed on the column; a rotary groove cutter and a ring assembling ram slidably mounted on the head and arranged to be moved into engagement with the work on the table; levers connected to feed the cutter and to initiate the operation of the ram; and a. source of powr to operate both the cutter and the ram.

13. A ring` joint machine, comprising, in combination, a worlrtable; a supporting column extending above the table; a turret head on the column; a rotary cutterhaving a shaft slidably mounted in the turret head; a ring assembling ram also slidably mounted on the head; stop' means to enable the turret head to be swung and bring the cutter or the ram over the work on the table; power means connected to drive the cutter andthe ram; and hand levers connected to move the cutter and the ram `toward the work.

A ring joint machine, comprising, in combination, a work table; a supporting column extending above the table; a turret head on the column; a rotary cutter having a shaft slidably mountedv in the turret head; a ring assembling ram also slidably mounted on the head; stop member on the column; a plungcr on the turret head engaging the stop member whereby the turretV lheady may be swung and stopped to center the cutter or the ram over the work; a motor mounted to move with the turretand having a belt driving connection to the cutter sha-ft; means to deliver power from the motor to the ram; and hand levers `to lower thel cutter 'and the ram and cause them to operate on the work.

l5. In a ring joint machine of the character described, a worl; table; a turret above the table; a ring assembling ram slidably mounted on said turret; a power operated crank for the ram; a manually operable toggle joint be'- tween the crank and the ram; and a spring associated with the ram normally to hold it in inoperativeposition.

16. In a ring joint machine of the class described, a work table; a vertical column above the work table; a turret mounted on the column; a rotary groove cutter and a ram carried by the turret; a bracket on the column adjacent to the turret and adjustable about the column; a motor supported on the bracket; a belt driving connection between the motor and the cutter shaft; and means for adjusting the bracket with respect to the turret, whereby to tighten the driving belt.

In testimony, that I claim the foregoing as my own, I have hereto affixed my signature.

VILLIAM L. EVANS. 

